Prohibited Discharge Standards

Prohibited Discharge

Analyses / Monitoring

Closed-cup Flashpoint

> 140oF (60°C) 40CFR261.21

pH

5.5 – 9.5 (acceptable range)

Temperature (@ connection to city sewer)

< 122°F (50°C)

General Prohibitions

No user shall introduce or cause to be introduced into the POTW any pollutant
or wastewater which causes pass through or interference. These general
prohibitions apply to all users of the POTW whether or not they are subject
to categorical pretreatment standards or any other National, State, or
local pretreatment standards or requirements.

Specific Prohibitions

Sec. 32.212. General sewer use requirements.

Pollutants which create a fire or explosive hazard in the WWF, including, but not limited to, wastestreams with a closed-cup flashpoint of less than 140° F (60° C) using the test methods specified in 40 CFR 261.21;

Wastewater having a pH less than 5.5 or more than 9.5, or otherwise causing corrosive structural damage to the WWF or equipment;

Solid or viscous substances in amounts which will cause obstruction of the flow in the WWF resulting in interference but in no case solids greater than three-eighths of an inch or ninety-five-one-hundredths of a centimeter in any dimension.

Pollutants, including oxygen-demanding pollutants (BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration which, either singly or by interaction with other pollutants, will cause interference with the WWF;

Wastewater having an average temperature greater than 122°F (50°C), at the point of connection with the city's sanitary sewer system;

Petroleum oil, non-biodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass through;

Pollutants which result in the presence of toxic gases, vapors, or fumes within the WWF in a quantity that may cause acute worker health and safety problems;

Trucked or hauled pollutants, except at discharge points designated by the coordinator in accordance with section 32.213(4) of this division;

Noxious or malodorous liquids, gases, solids, or other wastewater which, either singly or by interaction with other wastes, are sufficient to create a public nuisance or a hazard to life, or to prevent entry into the sewers for maintenance or repair;

Wastewater which imparts color which cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently imparts color to the WRF's effluent, thereby violating the city's wastewater NPDES permit;

Wastewater containing any radioactive wastes or isotopes except in compliance with applicable state or federal regulations;